8MSA5L.E1-V4 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The 8MSA5L.E1-V4 is a three phase synchronous motor manufactured by B & R Automation and is part of the 8MS Three Phase Synchronous Motors series. The motor features self-cooling, a large relative rated torque, and has a size 5 with motor length L. It is equipped with an EnDat multi-turn encoder offering ±60 seconds precision, a 512 line resolution, and supports up to 4096 recognizable revolutions.
Internal Product Review
The 8MSA5L.E1-V4 is a B & R Automation three-phase synchronous motor with self-cooling and large rated torque. The EnDat multi-turn encoder gives the motor a well-engineered feedback package for demanding motion control. Encoder precision of ±60″ is a strong advantage for accurate positioning.
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Product Description:
The 8MSA5L.E1-V4 three-phase synchronous motor is produced by B&R Automation as part of the 8MS Three Phase Synchronous Motors series. In packaging lines, pick-and-place gantries, and similar coordinated axes, the unit provides torque and speed synchronized with the drive controller’s current commands, delivering precise rotary motion without mechanical backlash. By integrating rotor position feedback with an internal thermal design, the motor serves as a compact actuator for continuous-duty industrial automation. Its synchronous operation also supports consistent speed regulation when load conditions change during repetitive machine cycles.
The motor rejects heat through its self-cooling construction, so forced cabinet airflow is unnecessary during rated operation. Rotor position is measured through a high-speed feedback path, and the EnDat interface provides a bandwidth of ≥ 100 kHz (-3 dB) for reliable data transmission across compatible encoder cables. Inside the encoder, optical tracks generate 512 lines, which provide fine incremental position counts after interpolation. An angular accuracy of ±60″ helps minimize position error during interpolation and closely controlled movement. The motor uses the EnDat protocol to transmit position and diagnostic data to the connected drive controller, allowing the control system to monitor motion and feedback status through the same interface.
Absolute position information across multiple shaft rotations is available through a multi-turn encoder. With a recognition depth of 4096 revolutions, the feedback system retains the rotor’s coarse position after a power cycle and reduces the need for repeated homing routines. The motor has a frame size 5, establishing the mounting envelope for installation in compatible machine assemblies. Its L length code indicates an extended housing that accommodates a longer magnetic stack. The continuous torque category is large, making the motor suitable for axes with substantial sustained loads and brief load transients. These operating characteristics support applications in which accurate position recovery and stable torque delivery are required during frequent starts, stops, and changes in speed.
